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STK672-060 Datasheet

Thick-Film Hybrid IC

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Ordering number : ENN7441A
Thick-Film Hybrid IC
STK672-060
Stepping Motor Driver (Sine Wave Drive) Output Current: 1.2 A (No Heat Sink*)
Unipolar constant-current chopper (external excitation PWM) circuit with built- in microstepping controller
Overview
The STK672-060 is a stepping motor driver hybrid IC that
adopts power MOSFETs in its output stage. It features a
built-in microstepping controller that implements unipolar
constant current PWM drive. Since this IC includes a
4-phase distribution controller for stepping motors, it can
contribute not only to system simplification but to circuit
standardization as well.
The STK672-060 supports the 2 phase, 1-2 phase, W1-2
phase, 2W1-2 phase, and 4W1-2 phase excitation (drive)
methods and can control the motor with the basic stepping
angle of the stepping motor divided into up to 16
divisions. Motor rotation can also be controlled with just
the clock signal.
This hybrid IC can implement highly efficient drive with
high motor torque, low vibration, low noise, and fast
response. As compared to the earlier Sanyo STK672-010
series, the STK672-060 features a smaller package, fewer
required external components, and improvements to the
controller for high functionality high performance
microstepping drive.
Applications
• Facsimile unit stepping motor drive for both
transmission and reception
• Paper feed and optical system stepping motor drive in
copiers
• Laser printer drum drive
• Printer carriage stepping motor drive
• X/Y plotter pen drive
• Other stepping motor applications
Features
• The STK672-060 can implement a stepping motor drive
system with just the provision of a DC power supply and
a clock pulse generator.
<Control Block Features>
The excitation mode settings (M1, M2, and M3) select one
of five excitation methods.
• 2 phase excitation
• 1-2 phase excitation
• W1-2 phase excitation
• 2W1-2 phase excitation
• 4W1-2 phase excitation
Continued on next page.
Package Dimensions
unit: mm
4161-SIP22
[STK672-060]
53.0
9.0
1
2.0
21×2=42
22
0.5
0.4
2.9
SANYO: SIP22
Notes*: Conditions: VCC1 = 24 V, IOH = 1.2 A, 2W1-2 excitation mode
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
22004TN (OT) No. 7441-1/19


Sanyo Electric Components Datasheet

STK672-060 Datasheet

Thick-Film Hybrid IC

No Preview Available !

STK672-060
Continued from preceding page.
• To match the motor characteristics, the vector locus
during microstepping drive can be selected to be any one
of four modes: circular mode, one inside mode, and two
outside modes.
• The phase is retained if excitation is switched during
operation.
• The excitation phase state can be verified in real time
using the MO1, MO2, and MOI signal output pins.
• The clock input counter block supports two signalsense
modes selected by the high or low state of the M3 pin.
—Rising edges only
—Both rising and falling edges
• The CLK and RETURN input pins have built-in circuits
that prevent malfunctions due to external noise pulses.
• Both an ENABLE and a RESET pin are provided as
Schmitt trigger inputs with built-in 20 k(typical) pull-
up resistors.
• No audible noise is generated by the differences in the
time constant between phases A and B when the motor
position is held fixed due to the adoption of external
excitation.
• The reference voltage Vref can be set to any level
between 0 and 1/2 VCC2. This allows the STK672-060
to provide microstepping operation even for small motor
currents.
<Drive Block>
• Provides a wide range of operating supply voltage
required for external excitation PWM drive (VCC1 = 10
to 45 V).
• Current detection resistor (0.22 ) built-in the hybrid IC
itself.
• Power MOSFETs adopted for low drive loss.
• Provides a motor output drive current of IOH = 1.2 A.
Specifications
Absolute Maximum Ratings at Tc = 25°C
Parameter
Maximum supply voltage 1
Maximum supply voltage 2
Input voltage
Phase output current
Repeated avalanche resistance
Power dissipation
Operating IC substrate temperature
Junction temperature
Storage temperature
Symbol
VCC1 max
VCC2 max
VIN max
IOH max
Ear max
Pd max
Tc max
Tj max
Tstg
Conditions
No signal
No signal
Logic input pins
0.5 s, 1 pulse, when VCC1 applied
θc-a = 0
Allowable Operating Ranges at Ta = 25°C
Parameter
Supply voltage 1
Supply voltage 2
Input voltage
Phase drive voltage handling capacity
Phase current
Symbol
VCC1
VCC2
VIH
VDSS
IOH max
Conditions
When the input signal is present
When the input signal is present
Transistors 1, 2, 3, and 4 (outputs A, A, B, and B)
Duty 50%
Ratings
52
–0.3 to +7.0
–0.3 to +7.0
1.6
25
7
105
150
–40 to +125
Unit
V
V
V
A
mJ
W
°C
°C
°C
Ratings
10 to 45
5 ±5%
0 to VCC2
100 (min)
1.2 (max)
Unit
V
V
V
V
A
No. 7441-2/19


Part Number STK672-060
Description Thick-Film Hybrid IC
Maker Sanyo Semicon Device
Total Page 19 Pages
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